• MKS director Elizabeth Mora sold 300 shares on June 1 at USD 318.02.
• Directly held stake rose to 19,145 shares following the transaction.
• Sale was executed under a Rule 10b5-1 trading plan adopted on Feb. 23, 2026.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. MKS Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001049502-26-000098), on June 02, 2026, and is solely responsible for the information contained therein.